外文翻譯--太陽能發(fā)電技術(shù)——光伏發(fā)電系統(tǒng)控制器(編輯修改稿)
2025-02-11 02:20 本頁面
【文章內(nèi)容簡介】 attery charging, speed up the battery charging, prolong the service life of the battery. Solar charge controller but also control the load power supply, battery protect battery and load circuit, avoid battery discharge phenomenon, thus, the controller plays a decisive role.City currently has a variety of solar controller, but the main problem controller to protect the battery enough, inappropriate is easy to cause the damage to the battery charge and discharge way, reduce the service life of the battery. At present, the monly used controller battery charging method includes three types: constant current charging method, phase charging method and constant voltage charging method. But these methods due to the imperfection of the charging ways of a single and control strategy, there are some limitations. On the other hand, when the battery to the load power supply, as the battery voltage detection controller can39。t time, so it is easy to occur over discharge of battery, will lead to the depth of the battery discharge, seriously affect its life.So, how to improve the solar charge controller to charge and discharge, development of excellent performance of charge and discharge controller, to improve the efficiency in the practical application, has bee an important research aspect.Two types of controllerThe basic function of the controller is similar to the voltage regulator, is mainly used to prevent the battery by solar electricity storagePool phalanx of charging and been load discharge. Control device mainly has four kinds: the bypass controller, serial controller, controller and multistage pulse controller. the bypass controllerBypass controller mainly use for small pv system. When the battery is full, through the bypass batteryTo prevent over charging. Bypass circuit system to monitor the battery voltage of the controller, when achieved marked the battery is full of in the electricity at ordinary times of charging flow will be power transistor bypass to the resistor, excess extra power into heat. Bypass the controller39。s power transistor with fin radiator, help radiate heat. Bypass the controller can also be bined with diode, in order to prevent the night electric current to flow from the battery back to square. The role of the diode as a form of valve, lets current flow into the battery during charging, at night to prevent battery electric flow phalanx return or saidReverse leakage. Bypass con
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